Zhiyi Zhang : user32/edit: Handle IME composition result string only when EIMES_GETCOMPSTRATONCE is set.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 2aa54a90bd24f6aa422a2eb832a54d9afe585259
URL:    https://gitlab.winehq.org/wine/wine/-/commit/2aa54a90bd24f6aa422a2eb832a54d9...

Author: Zhiyi Zhang <zzhang(a)codeweavers.com>
Date:   Fri Aug 12 11:32:54 2022 +0800

user32/edit: Handle IME composition result string only when EIMES_GETCOMPSTRATONCE is set.

If EIMES_GETCOMPSTRATONCE is not set, WM_IME_COMPOSITION with LPARAM set to GCS_RESULTSTR should be
passed to the default window procedure according to MSDN.

Fix some windows based on edit control not being able to input Chinese.

Signed-off-by: Zhiyi Zhang <zzhang(a)codeweavers.com>

---

 dlls/user32/edit.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/dlls/user32/edit.c b/dlls/user32/edit.c
index 6593ee6dce2..49cf2751f0a 100644
--- a/dlls/user32/edit.c
+++ b/dlls/user32/edit.c
@@ -5198,6 +5198,12 @@ LRESULT EditWndProc_common( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, B
 		break;
 
 	case WM_IME_COMPOSITION:
+                if (lParam & GCS_RESULTSTR && !(es->ime_status & EIMES_GETCOMPSTRATONCE))
+                {
+                    DefWindowProcT(hwnd, msg, wParam, lParam, unicode);
+                    break;
+                }
+
                 EDIT_ImeComposition(hwnd, lParam, es);
 		break;